That is not the correct answer
Answers
When doing medical research with human subjects, the following are unavoidable limitations;
It’s often impossible to repeat trials on the same subjects.
Subjects may report an inaccurate medical history.
It can be difficult to control all possible variables
There are ethical or privacy concerns to consider.
Explanation
When doing a medical research that involves human subjects it should be voluntary, informed and consent. The researchers should respect the persons treated as autonomous agents. The volunteers should be protected from physical, mental and emotional harm. The benefits should outweigh the costs.
Mitosis takes place in four stages: prophase (sometimes divided into early prophase and prometaphase), metaphase, anaphase, and telophase. You can learn more about these stages in the video on mitosis. In cytokinesis, the cytoplasm of the cell is split in two, making two new cells.
(Hope this helps)
I think that's asexual reproduction.
<span>The concentration of many people into the small area, for example, A city lowers the overall footprint of the population in the region.
Any pollution which results from people in a city can be isolated and treated more easily even than when people are being dispersed widely.
Many cities outlined suburbs to have a lower concentration of people because it can complicate public transport and provision of services. </span>
